#%% block 1
# 方法1：使用转义字符
user_message2 = 'He said:\ "Python\'s syntax is clean\"'
# 方法2：混合使用引号
user_message2 = "He said: 'Python's syntax is clean"
# 方法3：使用三引号处理复杂情况
user_message2 = """'He said: "Python's syntax is clean"'"""
